Coin bank



FIG. 1 is a front perspective view of a coin bank showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken line showing of the bottom surface features of the coin bank and the interior of the coin slot illustrates environmental structure which forms no part of the claimed design. 

CLAIM The ornamental design for a coin bank, as shown and described. 